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atsamd: Move watchdog code to its own files

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Move the watchdog code from main.c to watchdog.c and
samd51_watchdog.c.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2019-02-15 22:10:41 -05:00
parent 021264a6f5
commit 00e0a70a94
4 changed files with 49 additions and 31 deletions
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23
src/atsamd/samd51_watchdog.c Normal file
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@@ -0,0 +1,23 @@
// Watchdog handler on SAMD21 boards
//
// Copyright (C) 2018-2019 Kevin O'Connor <kevin@koconnor.net>
//
// This file may be distributed under the terms of the GNU GPLv3 license.
#include "internal.h" // WDT
#include "sched.h" // DECL_TASK
void
watchdog_reset(void)
{
WDT->CLEAR.reg = 0xa5;
}
DECL_TASK(watchdog_reset);
void
watchdog_init(void)
{
WDT->CONFIG.reg = WDT_CONFIG_PER(6); // 500ms timeout
WDT->CTRLA.reg = WDT_CTRLA_ENABLE;
}
DECL_INIT(watchdog_init);